diff options
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r-- | include/linux/blkdev.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a92d9e4ea96e..f3491d225268 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h | |||
@@ -87,7 +87,9 @@ enum { | |||
87 | */ | 87 | */ |
88 | enum rq_flag_bits { | 88 | enum rq_flag_bits { |
89 | __REQ_RW, /* not set, read. set, write */ | 89 | __REQ_RW, /* not set, read. set, write */ |
90 | __REQ_FAILFAST, /* no low level driver retries */ | 90 | __REQ_FAILFAST_DEV, /* no driver retries of device errors */ |
91 | __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */ | ||
92 | __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */ | ||
91 | __REQ_DISCARD, /* request to discard sectors */ | 93 | __REQ_DISCARD, /* request to discard sectors */ |
92 | __REQ_SORTED, /* elevator knows about this request */ | 94 | __REQ_SORTED, /* elevator knows about this request */ |
93 | __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ | 95 | __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ |
@@ -111,8 +113,10 @@ enum rq_flag_bits { | |||
111 | }; | 113 | }; |
112 | 114 | ||
113 | #define REQ_RW (1 << __REQ_RW) | 115 | #define REQ_RW (1 << __REQ_RW) |
116 | #define REQ_FAILFAST_DEV (1 << __REQ_FAILFAST_DEV) | ||
117 | #define REQ_FAILFAST_TRANSPORT (1 << __REQ_FAILFAST_TRANSPORT) | ||
118 | #define REQ_FAILFAST_DRIVER (1 << __REQ_FAILFAST_DRIVER) | ||
114 | #define REQ_DISCARD (1 << __REQ_DISCARD) | 119 | #define REQ_DISCARD (1 << __REQ_DISCARD) |
115 | #define REQ_FAILFAST (1 << __REQ_FAILFAST) | ||
116 | #define REQ_SORTED (1 << __REQ_SORTED) | 120 | #define REQ_SORTED (1 << __REQ_SORTED) |
117 | #define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER) | 121 | #define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER) |
118 | #define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) | 122 | #define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) |
@@ -560,7 +564,12 @@ enum { | |||
560 | #define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL) | 564 | #define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL) |
561 | #define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE) | 565 | #define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE) |
562 | 566 | ||
563 | #define blk_noretry_request(rq) ((rq)->cmd_flags & REQ_FAILFAST) | 567 | #define blk_failfast_dev(rq) ((rq)->cmd_flags & REQ_FAILFAST_DEV) |
568 | #define blk_failfast_transport(rq) ((rq)->cmd_flags & REQ_FAILFAST_TRANSPORT) | ||
569 | #define blk_failfast_driver(rq) ((rq)->cmd_flags & REQ_FAILFAST_DRIVER) | ||
570 | #define blk_noretry_request(rq) (blk_failfast_dev(rq) || \ | ||
571 | blk_failfast_transport(rq) || \ | ||
572 | blk_failfast_driver(rq)) | ||
564 | #define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED) | 573 | #define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED) |
565 | 574 | ||
566 | #define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) | 575 | #define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) |